Broadband Notch Filters Based on Quasi-2-D Photonic Crystal Waveguides for InP-Based Monolithic Photonic-Integrated Circuits

2006 ◽  
Vol 12 (6) ◽  
pp. 1164-1174 ◽  
Author(s):  
Marcelo Davanco ◽  
Aimin Xing ◽  
James W. Raring ◽  
Evelyn L. Hu ◽  
Daniel J. Blumenthal
Keyword(s):  
Photonic Crystal ◽  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Photonic Crystal Waveguides ◽  
Notch Filters

Design of All-optical Half-subtractor Circuit Device using 2-D Principle of Photonic Crystal Waveguides

2019 ◽  
Vol 40 (3) ◽  
pp. 195-203 ◽  
Author(s):  
Sandip Swarnakar ◽  
Santosh Kumar ◽  
Sandeep Sharma
Keyword(s):  
Photonic Crystal ◽  
Integrated Circuits ◽  
Finite Difference Time Domain ◽  
Optical Amplifiers ◽  
Photonic Integrated Circuits ◽  
Square Lattice ◽  
Photonic Crystal Waveguides ◽  
Nonlinear Materials ◽  
All Optical ◽  
Difference Time

Abstract A design of all-optical half-subtractor (AOHS) is presented based on two-dimensional (2-D) photonic crystal (PhC) waveguides without using optical amplifiers and nonlinear materials. It is an essential component of various photonic integrated circuits. The design of AOHS circuit is based on beam interference principle, using square lattice of Y-shaped and T-shaped waveguides with silicon dielectric rods in air substrate. It is validated through finite-difference time-domain and using MATLAB simulations.

Proposal for high efficiently 1×4 power splitter based on photonic crystal waveguides

2015 ◽  
Vol 29 (15) ◽  
pp. 1550073 ◽  
Author(s):  
Hong Wang ◽  
Lingjuan He
Keyword(s):  
Photonic Crystal ◽  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Optical Power ◽  
Input Power ◽  
Photonic Crystal Waveguides ◽  
Defect Region ◽  
Power Splitter ◽  
Practical Applications ◽  
Total Transmittance

We proposed a new kind of 1×4 optical power splitter composed of one input photonic crystal (PC) waveguide (PCW) and two PC branches with a triangular lattice of air holes. By employing the coupling between a defect region and one input, four output PCWs, the input power can be efficiently split into four output ports. The total transmittance as high as 99.4% at the wavelength 1550 nm is achieved. By modifying two holes at junction area, the input power can be almost evenly split into four parts with a bandwidth larger than 80 nm. It provides a new method and a compact model to split input power into multiple output ports in PCW devices and may find practical applications in future photonic integrated circuits.

Optically Tuneable Photonic Crystal Waveguides for Photonic Integrated Circuits

2008 ◽  
Author(s):  
Scott Masturzo ◽  
Howard Jackson ◽  
Joseph Boyd ◽  
Robert Ewing ◽  
Hoda Abdel-Aty-Zohdy ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Photonic Crystal Waveguides

Design and Analysis of Taper Structure for Light Coupling into Photonic Crystal Waveguides Fabricated by Si-Ion Implantation

2013 ◽  
Vol 534 ◽  
pp. 162-166
Author(s):  
Amarachukwu Valentine Umenyi ◽  
Shusuke Kikuchi ◽  
Tomoyuki Sasaki ◽  
Kenta Miura ◽  
Osamu Hanaizumi
Keyword(s):  
Photonic Crystal ◽  
Integrated Circuits ◽  
Ion Implantation ◽  
Polarized Light ◽  
Photonic Crystal Waveguides ◽  
Practical Applications ◽  
Waveguide Width ◽  
Light Coupling ◽  
Propagation Methods ◽  
Si Ion Implantation

In this paper, we designed and analyzed an efficient taper structure to couple light into and out of photonic crystal waveguides (PhCWs) fabricated by Si-ion implantation and electron beam lithography. The coupling structure employs the gentle refractive-index distribution produced in the SiO2layer by Si-ion implantation. A taper structure is designed for effective coupling of transverse electric (TE) polarized light (λ = 1.55 μm) into a submicron size PhCW consisting of triangular lattice of air holes (lattice constant,a= 0.666 μm, radius of air holes,r= 0.232 μm, waveguide width, W1 ~ 0.7 μm). The influence of the taper length on the transmission characteristics is investigated. Efficiency in excess of 95% is demonstrated using the finite-difference time-domain and beam propagation methods. This is important for their practical applications in photonic integrated circuits.

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